Sebastian @ HfG
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
#pragma once
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#include <libremidi/config.hpp>
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#include <functional>
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#include <map>
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namespace libremidi
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{
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/**
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* Used to set up keyboard input.
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* Your app should pass a function that will give you a callback
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* that you should call whenever you are getting a key input (press or release).
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*/
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struct kbd_input_configuration
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{
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using scancode_callback = std::function<void(int)>;
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// First argument is on key press, second on key release
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std::function<void(scancode_callback, scancode_callback)> set_input_scancode_callbacks
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= [](scancode_callback, scancode_callback) {};
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enum kbd_event
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{
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NOTE_0 = 0x0, // C
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VEL_0 = NOTE_0 + 128, // Set velocity to 0
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OCT_0 = VEL_0 + 128, // Set octave to 0
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OCTAVE_PLUS = OCT_0 + 128,
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OCTAVE_MINUS,
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VELOCITY_PLUS,
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VELOCITY_MINUS,
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};
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// Default map
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//
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// ,---,---,---,---,---,---,---,---,---,---,---,---,---,-------,
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// | V0| V1| V2| V3| V4| V5| V6| V7| V8| V9|V10|V11|V12| <- |
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// |---'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-----|
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// | ->| | | C#| D#| | F#| G#| A#| | C#| D#| | F#| |
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// |-----',--',--',--',--',--',--',--',--',--',--',--',--'| |
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// | Caps | C | D | E | F | G | A | B | C | D | E | F | G | |
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// |----,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'---'----|
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// | -^ | | O-| O+| V-| V+| | | | | | | ----^ |
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// |----'-,-',--'--,'---'---'---'---'---'---'-,-'---',--,------|
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// | ctrl | | alt | |altgr | | ctrl |
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// '------' '-----'--------------------------'------' '------'
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// clang-format off
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// Use: https://kbdlayout.info/KBDUSX/scancodes
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std::map<int, int> scancode_map{
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{ 0x1E, NOTE_0}, // C0
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{ 0x11, NOTE_0 + 1},
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{ 0x1F, NOTE_0 + 2},
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{ 0x12, NOTE_0 + 3},
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{ 0x20, NOTE_0 + 4},
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{ 0x21, NOTE_0 + 5},
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{ 0x14, NOTE_0 + 6},
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{ 0x22, NOTE_0 + 7},
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{ 0x15, NOTE_0 + 8},
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{ 0x23, NOTE_0 + 9},
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{ 0x16, NOTE_0 + 10},
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{ 0x24, NOTE_0 + 11},
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{ 0x25, NOTE_0 + 12}, // C1
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{ 0x18, NOTE_0 + 13},
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{ 0x26, NOTE_0 + 14},
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{ 0x19, NOTE_0 + 15},
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{ 0x27, NOTE_0 + 16},
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{ 0x28, NOTE_0 + 17},
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{ 0x1B, NOTE_0 + 18},
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{ 0x2B, NOTE_0 + 19},
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{ 0x29, VEL_0 + int(0)},
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{ 0x02, VEL_0 + int(1 * 127 / 12)},
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{ 0x03, VEL_0 + int(2 * 127 / 12)},
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{ 0x04, VEL_0 + int(3 * 127 / 12)},
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{ 0x05, VEL_0 + int(4 * 127 / 12)},
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{ 0x06, VEL_0 + int(5 * 127 / 12)},
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{ 0x07, VEL_0 + int(6 * 127 / 12)},
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{ 0x08, VEL_0 + int(7 * 127 / 12)},
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{ 0x09, VEL_0 + int(8 * 127 / 12)},
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{ 0x0A, VEL_0 + int(9 * 127 / 12)},
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{ 0x0B, VEL_0 + int(10 * 127 / 12)},
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{ 0x0C, VEL_0 + int(11 * 127 / 12)},
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{ 0x0D, VEL_0 + int(127)},
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{ 0x2C, OCTAVE_MINUS },
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{ 0x2D, OCTAVE_PLUS },
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{ 0x2E, VELOCITY_MINUS },
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{ 0x2F, VELOCITY_PLUS},
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};
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// clang-format on
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};
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}
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